In this photo released by the Iranian Students News Agency, ISNA, Iranians hold posters of President Hassan Rouhani as they welcome Iranian nuclear negotiators upon their arrival from Geneva at the Mehrabad airport in Tehran, Iran, Sunday, Nov. 24, 2013.
ASSOCIATED PRESS

A report is due out today summarizing the investigation into the Sandy Hook Elementary School shooting that killed 20 children and six adults a year ago. Many questions will remain unanswered, though, in part because investigators are resisting requests to release police evidence and 911 recordings.

Holiday travel is already messy in the southwestern U.S., as snow and rain canceled flights. The East Coast will see similar storms just before Thanksgiving.